..you are going to sleep wondering why you can only easily imagine Twilight as alicorn (with wings) now, and not as her earlier self ...
Anyway, there is backlink to some interesting discussion /in comments/ about emotional life (vs rule-based life), from jul, 2014:
https://www.fimfiction.net/story/202760/1/checkmate-in-three/chapter-1 [because in year in the future I most likely will forgot where exactly I saw those, so bookmark]